Accurate environmental conditions, not from a distant weather station but from the palm of your hand with the Kestrel 5500 Handheld Pocket Weather Meter!

As with it's predecessor (Kestrel 4500), the Kestrel 5500 measures every environmental condition plus wind direction, crosswind and headwind/tailwind. Use it golfing, sailing, flying, spraying, shooting and more. Drop-proof, dust-proof, waterproof and able to withstand extreme environments, your Kestrel weather meter travels with you anywhere you dare to go. The Kestrel 5500 has a larger, higher-resolution and contrast built-in dual color backlit display, made from extra-strong polycarbonate lens for improved font readability. Optional LiNK iOS and Android wireless connectivity and app support available. Like all Kestrel meters, the Kestrel 5500 is drop-proof, dust-proof, waterproof and able to withstand harsh environments without damage – so it can so it can work or play as hard as you do, wherever you do.

In addition to measuring the current environmental conditions, the Kestrel 5500 tracks and logs over 10,000 sets of time-stamped data. Your data log can be transferred to a iOS/Android device wirelessly with the LiNK wireless communication option and the Kestrel LiNK app, or to a Windows PC or Mac with either the accessory Kestrel LiNK Dongle or waterproof USB Data Transfer Cable (Both sold separately).The true versatility of the Kestrel 5500 becomes apparent with the addition of the Kestrel Vane Mount. This precision-engineered accessory securely mounts the Kestrel 5500 to any tripod or other ¼-20 fitted bracket. Once mounted, the Kestrel 5500 becomes a full-featured weather station. Select "Add LiNK (Bluetooth Connectivity) + Vane Mount" or select the standard 5500 and purchase the vane mount separately in our Accessories section.

ADDITIONAL PRODUCT INFO

Display updates every 1 second. After exposure to large environmental changes, all sensors require an equilibration period to reach stated accuracy. Measurements employing RH may require longer periods particularly after prolonged exposure to very high or very low humidity.

14° F to 131° F | -10 °C to 55 °C Measurements may be taken beyond the limits of the operational temperature range of the display and batteries by maintaining the unit within the operational range and then exposing it to the more extreme environment for the minimum time n ecessary to take reading.

*Note: Accuracy calculated as uncertainty of the measurement derived from statistical analysis considering the combined effects from primary sensor specifications, circuit conversions, and all other sources of error using a coverage factor of k=2, or two standard deviations (2Ʃ)

**Note: These specifications are valid for all Kestrel 1000, 2000, 2500, 3000, 3500 series with a serial number higher than 2262687. If your product has a lower serial number, please reference the K4000 specifications 329011.

Airflow of 2.2 mph|1 m/s or greater provides fastest response and reduction of insolation effect. For greatest accuracy, avoid direct sunlight on the temperature sensor and prolonged sunlight exposure to the unit in low airflow conditions.Calibration drift is negligible for the life of the product. For further details, see Display & Battery Operational Temperature Limits.

Relative Humidity

2%RH

0.1 %RH

10 to 90% 25°C non- condensing

To achieve stated accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and be kept out of direct sunlight. Calibration drift is typically less than ±0.25% per year.

Pressure

1.5 hPa|mbar 0.044 inHg 0.022 PSI

0.1 hPa|mbar 0.01 inHg 0.01 PSI

25°C/77°F 700-1100 hPa|mbar 20.67-32.48 inHg 10.15-15.95 PSI

Monolithic silicon piezo-resistive pressure sensor with second-order temperature correction. Between 1100–1600 mbar, unit will operate with reduced accuracy. Sensor may not operate above 1600 mbar and can be damaged above 6,000 mbar or below 10 mbar. Calibration drift is negligible for the life of the product.

Compass

5°

1° 1/16th Cardinal Scale

0 to 360°

2-axis solid-state magneto-resistive sensor mounted perpendicular to unit plane. Accuracy of sensor dependent upon unit’s vertical position. Self-calibration routine eliminates magnetic error from batteries or unit and must be run after every full power- down (battery removal or change). Readout indicates direction to which the back of the unit is pointed when held in a vertical orientation. Declination/variation adjustable for True North readout.

ADDITIONAL PRODUCT INFO

Display updates every 1 second. After exposure to large environmental changes, all sensors require an equilibration period to reach stated accuracy. Measurements employing RH may require longer periods particularly after prolonged exposure to very high or very low humidity. WBGT requires about 8 minutes to reach 95% accuracy and about 15 minutes to reach 99% accuracy after exposure to large environmental changes.

Data Storage & Graphical display, Min/Max/Avg History

Logged history stored and displayed for every measured value. Manual and auto data storage. Min/Max/Avg history may be reset independently. Auto-store interval settable from 2 seconds to 12 hours*, overwrite on or off. Logs even when display off except for 2 and 5 second intervals. Kestrel 5 series units hold over 10,000 data points.

14° F to 131° F | -10 °C to 55 °C Measurements may be taken beyond the limits of the operational temperature range of the display and batteries by maintaining the unit within the operational range and then exposing it to the more extreme environment for the minimum time necessary to take reading.

or below 10 mbar. Calibration drift is negligible for the life of the product.

CALCULATED MEASUREMENTS

MEASUREMENT

ACCURACY (+/-)

RESOLUTION

SENSORS EMPLOYED

Density Altitude

226 ft

69 m

1 ft

1 m

Temperature, Relative Humidity,

Pressure

Dew Point

3.4 °F

1.9 °C

15-95% RH. Refer to Range

for Temperature Sensor

0.1 °F

0.1 °C

Temperature, Relative Humidity

Heat Index

7.1°F

4.0°C

0.1 °F

0.1 °C

Temperature, Relative Humidity

THI (NRC)

1.5 °F

0.8 °C

0.1 °F

0.1 °C

Temperature, Relative Humidity

THI (Yousef)

2.3 °F

1.3 °C

0.1 °F

0.1 °C

Temperature, Relative Humidity

Wet Bulb Temperature - Psychrometric

3.2 °F

1.8 °C

0.1 °F

0.1 °C

Temperature, Relative Humidity

Pressure

ADDITIONAL PRODUCT INFO

Response Time & Display Update

Display updates every 1 second. After exposure to large environmental changes, all sensors require an equilibration period to reach stated accuracy. Measurements employing RH may require longer periods particularly after prolonged exposure to very high or very low humidity. WBGT requires about 8 minutes to reach 95% accuracy and about 15

minutes to reach 99% accuracy after exposure to large environmental changes.

0° F to 140° F |-18 °C to 60 °C Measurements may be taken beyond the limits of the operational temperature range of batteries by maintaining the unit within the operational range and then exposing it to the more extreme environment for the minimum time necessary to take reading.

Blue Ocean Megaphone Manual

Frequently asked questions

Kestrel 5500 weather meter
Overall excellent experience so far.
Have not used it to much but quickly learned how to make adjustments. No real learning curve. Have not used data transfer as of yet I did not OP for the link as I have no real use for immediate .transfer of data. Very high quality weather instrument which is accurate and well made..This meter should be great for my hiking, mountain climbing and winter sports.

Anonymous

ExtremeMeters - Kestrel 5500
Kestral Meter is great. Got it as a gift for my son. Service from ExtremeMeters was also great. I had to return the first one, because it was my fault. They made it very easy to do that. I would shop there again for sure.

William R.

Perfect in every way

William M.

The 5500 met all my expectations. The interface was easy to use after just a few minutes of experimentation. The tablet app however was a little clunky. I would have liked too be able to see it graph the data in real time and not require you to re start the app to view only a history of past data.

Roni W.

Great product fast shipping good price

Margot *.

The battery case and humidity sensor are packaged much better, my 4500 survived many Wildland Fire State mobs before finally getting sick and need of repair. It died on the bench and Kestrel provided me with a discount on the new 5500 weather station, so far it has done very well providing me with weather information high in the mountains 100’ in a microwave tower.
Thank you Kestrel.

Richard S.

Great device. Does exactly what I needed it to do plus a lot more. The Bluetooth connection is a bit wonky and I have to reconnect often, but I really like the data logging features and the various type of weather data the device collects.

I purchased the Kestrel 5500 to use on my sailboat. It does everything I? need and more. The only slight problem I have is that it has to be calibrated every time you turn it on. Not a big problem, but it would be nice if it retained it's calibrations as long as the battery was in the unit.

Joshua S.

Perfect service! Definitely recommended :)

Daniel B.

the accuracy is awesome

James F.

This product performs as advertised. The only complaint is that the supported Bluetooth protocol is not backward compatible.

Jack F.

Works very well, makes me happy

Daniel H.

Bought it as a gift for my nephew. He seemed please the product. I was pleased with the gteat service and quick delivery.

Ken M.

I've found it very useful out at the range an very easy to use a must for any long range shooting

Douglas B.

Works great, looking forward to many years' use out of it.

Vidas T.

At first I didn't think it the Kestrel meter will be so useful/helpful before I actually got it, it's amazing, thanks a lot!

Phillip B.

I have two drones that I use for Agriculture Missions. On every flight many of the options on the Kestrel get used to make the drones fly more efficiently. Many of the other options are available to monitor my comfort. The Kestrel 5500 Weather & Environmental Meter works as it is advertised. One caution if you are using a tripod as I do hang some weight on the tripod especially if you are just checking to see how high the gusts are raging. In my case a gale was blowing close to 30, I turned my back and the station crashed to the ground with a 12 mph gust beside me. My tripod is carbon fiber and with my usual weight for photography it would have handled 60 mph gales. Fortunately no damage, but lesson learned.
Thanks Kestrel, great data and durable for even me.

Kestrel 5500 weather meter
Overall excellent experience so far.
Have not used it to much but quickly learned how to make adjustments. No real learning curve. Have not used data transfer as of yet I did not OP for the link as I have no real use for immediate .transfer of data. Very high quality weather instrument which is accurate and well made..This meter should be great for my hiking, mountain climbing and winter sports.

Anonymous

ExtremeMeters - Kestrel 5500
Kestral Meter is great. Got it as a gift for my son. Service from ExtremeMeters was also great. I had to return the first one, because it was my fault. They made it very easy to do that. I would shop there again for sure.

William R.

Perfect in every way

William M.

The 5500 met all my expectations. The interface was easy to use after just a few minutes of experimentation. The tablet app however was a little clunky. I would have liked too be able to see it graph the data in real time and not require you to re start the app to view only a history of past data.

Roni W.

Great product fast shipping good price

Margot *.

The battery case and humidity sensor are packaged much better, my 4500 survived many Wildland Fire State mobs before finally getting sick and need of repair. It died on the bench and Kestrel provided me with a discount on the new 5500 weather station, so far it has done very well providing me with weather information high in the mountains 100’ in a microwave tower.
Thank you Kestrel.

Richard S.

Great device. Does exactly what I needed it to do plus a lot more. The Bluetooth connection is a bit wonky and I have to reconnect often, but I really like the data logging features and the various type of weather data the device collects.

I purchased the Kestrel 5500 to use on my sailboat. It does everything I? need and more. The only slight problem I have is that it has to be calibrated every time you turn it on. Not a big problem, but it would be nice if it retained it's calibrations as long as the battery was in the unit.

Joshua S.

Perfect service! Definitely recommended :)

Daniel B.

the accuracy is awesome

James F.

This product performs as advertised. The only complaint is that the supported Bluetooth protocol is not backward compatible.

Jack F.

Works very well, makes me happy

Daniel H.

Bought it as a gift for my nephew. He seemed please the product. I was pleased with the gteat service and quick delivery.

Ken M.

I've found it very useful out at the range an very easy to use a must for any long range shooting

Douglas B.

Works great, looking forward to many years' use out of it.

Vidas T.

At first I didn't think it the Kestrel meter will be so useful/helpful before I actually got it, it's amazing, thanks a lot!

Phillip B.

I have two drones that I use for Agriculture Missions. On every flight many of the options on the Kestrel get used to make the drones fly more efficiently. Many of the other options are available to monitor my comfort. The Kestrel 5500 Weather & Environmental Meter works as it is advertised. One caution if you are using a tripod as I do hang some weight on the tripod especially if you are just checking to see how high the gusts are raging. In my case a gale was blowing close to 30, I turned my back and the station crashed to the ground with a 12 mph gust beside me. My tripod is carbon fiber and with my usual weight for photography it would have handled 60 mph gales. Fortunately no damage, but lesson learned.
Thanks Kestrel, great data and durable for even me.